| Train | Source | Destination | Days Run from Mariani Jn |
| 15666 - Bg Express | Mariani Jn (MXN) | Guwahati (GHY) | Mon Tue Wed Fri Sat Sun |
| # | Station | Arrival | Departure | Halt | Distance | Day |
| 1 | Mariani Jn (MXN) | Source | 06:05 AM | 0 Mins | 0 KMs | 1 |
| 2 | Jorhat Town (JTTN) | 06:40 AM | 06:45 AM | 5 Mins | 18 KMs | 1 |
| 3 | Moabund (MOBD) | 07:03 AM | 07:05 AM | 2 Mins | 36 KMs | 1 |
| 4 | Barua Bamungaon (BBGN) | 07:20 AM | 07:22 AM | 2 Mins | 46 KMs | 1 |
| 5 | Golaghat (GLGT) | 07:58 AM | 08:00 AM | 2 Mins | 78 KMs | 1 |
| 6 | Furkating Jn. (FKG) | 08:20 AM | 08:22 AM | 2 Mins | 85 KMs | 1 |
| 7 | Barpathar (BXP) | 08:40 AM | 08:42 AM | 2 Mins | 110 KMs | 1 |
| 8 | Bokajan (BXJ) | 09:08 AM | 09:10 AM | 2 Mins | 141 KMs | 1 |
| 9 | Dimapur (DMV) | 09:25 AM | 09:35 AM | 10 Mins | 155 KMs | 1 |
| 10 | Diphu (DPU) | 10:16 AM | 10:18 AM | 2 Mins | 193 KMs | 1 |
| 11 | Lumding Jn (LMG) | 11:00 AM | 11:10 AM | 10 Mins | 224 KMs | 1 |
| 12 | Lamsakhang (LKG) | 11:26 AM | 11:28 AM | 2 Mins | 239 KMs | 1 |
| 13 | Lanka (LKA) | 11:42 AM | 11:44 AM | 2 Mins | 255 KMs | 1 |
| 14 | Hojai (HJI) | 11:56 AM | 11:58 AM | 2 Mins | 269 KMs | 1 |
| 15 | Jamunamukh (JMK) | 12:10 PM | 12:12 PM | 2 Mins | 286 KMs | 1 |
| 16 | Kampur (KWM) | 12:22 PM | 12:24 PM | 2 Mins | 297 KMs | 1 |
| 17 | Chaparmukh Jn (CPK) | 12:43 PM | 12:45 PM | 2 Mins | 314 KMs | 1 |
| 18 | Jagi Road (JID) | 01:12 PM | 01:14 PM | 2 Mins | 348 KMs | 1 |
| 19 | Guwahati (GHY) | 03:20 PM | Destination | 0 Mins | 405 KMs | 1 |